Sidney parker



A" i .lnitml $121125 @strut otitis.

Letters Patent No. 85,758, dated January 12, 1869.

IMPROVE!) RAILWAY-FROG'.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it mal/y concern;

Be' it known that I, SIDNEY PARKER., of Chicago, in the county of Cook, and State of Illinois, have invented certain new and useful Improvements in Railroad-Frogs and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings, making part Iof this specification', and to' the letters of referencemarked thereon-like letters. indicating like parte whenever they occur.

To enable others skilled in the art to construct and use the invention, I proceed to describe it.

l My invention con ists in making a bed-piece or frame .of a single piece of i 'ought-iron, of proper shape, to receive and hold the rails, and fitting thereto rails of hammered steel, with a plate, also of Wrought-iron,

under the centre of the bed-piece, and of the samev lwidth, securely bolted or fastened to the bed-plate or frame.

The point or centre of the frog is made of hammered steel, passes through the bed-plate, and is bolted or fastened tothe piece of wrought-iron under the bedlate.. p I rst construct' a bed-piecer frame, L, in g. 2, side elevation, of wrought-iron, of proper length, and Width, and thickness. Under the centre of the bed-plate is placed a plate of Wrought-iron, marked M, in fig. 2, side elevation, of the same width as the bed-plate, and of proper length. At each end of the bed-plate is a cast or wroughtiron chair, or partly of both, to receive the end of the rail, as shown in N, on g. 2, side elevation, and of the shape shown in F, g. 4, end elevation, to B B.

A plate of wrought-iron, marked O, on g. 2, side elevation, is placed under `and used as the bottom of the chair, and is secured to the chair, bed-plates, and rails by rivets, as shown in g. 8, inverted plan.

P, on inverted plan, fig. 8, is a square hole, punched through the wrought-iron plate forming the base of the chair, throgh which one or more spikes are driven into the ties to hold rails.

I and J, as shown on fig. 1, are hammered-steel rails, secured by rivets.

Il, as shown on fig. 1, is a hammered-steel point let through the bed-plate, and fastened to the wroughtiron plate mlder the centre of bed-plate as before described,`by rivets. v

G, on same figure, is a hammered-steel or Wroughtiron base, secured to bed-plates by Wrought-iron rivets or bolts.

F and K, on g. l, are chairs made partly of .cast and partly of wrought-iron, or wholly of either, and securely fastened to the bed-plates by rivets.

Figure l is the plan.

Figure 2 is side elevation.

Figure 3 is section through a ag. 1. Figure 4 is end elevation to B B of g. 1. Figure 5 is section through C C to fi 1.

yFigure 6 is section through D D of lig. 1. Figure 7. is end elevation to E E,fig. l. Figure 8 is aninverted plan. Having thus described my invention, What I claim, is l A railroad-frog, consisting .of the wrought-iron bedplate L, the wroughtiron plate 1ML .under its centre, the hammered-steel point H, llet through the bed-plate and fastened to M, the hammered-steel rails I and J, the cast-iron chair vI?, withwrought-iron base O, the Whole combined and constructedy as herein shown.

Chicago, VSeptember 2, 1867.

SIDNEY PARKER Witnesses: v

W. CHARLES, J. S. REYNoLDs. 

